SPACER A.-TOP 2L0646 - Caterpillar

Right Auxiliary Valve
Illustration 1 g06073372
Right Side of Machine
(1) Right auxiliary valveRight auxiliary valve (1) is located in the right front compartment, above the antislab assembly. The right front compartment door provides access to this component.Supply oil from the auxiliary pump is directed to port"P1" of right auxiliary valve (1). Return oil from the right auxiliary valve is sent out port"T1" to the return filter in the hydraulic tank.
Illustration 2 g06072966
Right Auxiliary Valve
(2) Left front side plate control solenoids
(3) Right front side plate control solenoids
(4) Antislab control solenoids
(5) Antislab pressure reducing valve
(6) Left front side plate float solenoid
(7) Right front side plate float solenoid
(8) Side plate pressure reducing valve
(9) Antislab float solenoidCircuit control solenoids are installed on the front and rear of right auxiliary valve (1). These solenoids are controlled by the transmission ECM, and control oil flow for the corresponding circuit.Note: The left front side plate solenoids (2) and (6) are controlled by the steering ECM.The left front side plate float solenoid (6) and the right front side plate float solenoid (7) control return flow from the rod end of the corresponding side plate cylinder. When these solenoids are not energized (HOLD mode), a check-valve blocks oil flow from the head end of the front side plate cylinders. This action prevents the respective front side plate cylinder from lowering. When these solenoids are energized, oil in the rod end of the front side plate cylinders flows freely. The side plate float solenoids are energized during side plate RAISE, LOWER, and FLOAT commands.The left front side plate control solenoids (2) and the right front side plate control solenoids (3) control oil directional flow to the front side plate cylinders. When these solenoids are not energized, the respective front side plate cylinder is open to tank. This action allows the side plates to raise when acted upon by an outside force. When a side plate RAISE command is generated, the forward solenoid is energized. In this case, oil flows to the rod end of the respective side plate cylinder. When the side plate LOWER command is generated, the rearward solenoid is energized. In this case, oil flows to the head end of the respective side plate cylinder.The side plate pressure reducing valve (8) reduces the front side plate cylinder circuit pressure to 4500 kPa (653 psi). This valve is adjustable.Antislab float solenoid (9) controls return flow from the rod end of the antislab cylinders. When the solenoid is not energized (HOLD mode), a check-valve blocks oil flow from the head end of the cylinders. This action prevents the antislab assembly from lowering. When this solenoid is energized, oil from the rod end of the antislab cylinders flows freely. The antislab float solenoid is energized during antislab RAISE, LOWER, and FLOAT commands.Note: Antislab float solenoid (9) is controlled by the transmission ECM through a relay.Antislab control solenoids (4) control oil directional flow to the antislab cylinders. When these solenoids are not energized, the antislab cylinders are open to tank. This action allows the